Machine-base



M. LEITCH.

MACHINE BASE.

APPLICATION FILED AUG-31.1917.

Patented July 15, 1919.

EYW/j WITNESS.

THE COLUMBIA PLANUURAPH cm. WASHINGTON, n. c.

UNITED STATES I' ATENI OFFIQE.

MEREDITH LEITCH, OF POUGI-IKEEPSIE, NEW YORK, ASSIGNOR TO THE DE LAVAL'SEPARA'IOR COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

MACHINE-BASE.

Specification of Letters Patent.

Patented July 15, 1919.

Application filed August 31, 1917. Serial N 0. 189,046.

To all whom it may concern:

Be it known that I, MEREDITH LEIToH, a citizen of the United States,residing at Poughkeepsie, county of Dutchess, and State of New York,have invented a new and useful Improvement in Machine Bases, of whichthe following is a full, clear, and exact description, reference beinghad to the accompanying drawings, which form a part of thisspecification.

My invention relates to bases or stools for machines. The object of myinvention is to produce a readily manufactured, and rlgid, sheet metalmachine stool.

The particular embodiment of my invention described herein is a base orstool for a centrifugal cream separator, but the same construction issuitable for many other machines.

Separator stools are usually made of cast iron and are, because of theimpossibility of casting very thin sections, necessarily heavy andcumbersome.

Attempts have been made to make sheet metal stools by drawing from aflat blank, but the height and size are such as to require the use oflong stroke powerful resses, thereby making the stool expensive.

When cast iron stools are used there are generally finished surfaces, onthe bottom of the machine frame, that fit on top of a shelf which, inturn, fits on top of the stool, and a screw, passed through a hole inthe center of the stool top and screwed into the bottom of the machineframe, clamps all together. The preferred embodiment of my invention isespecially adapted for use in the combination.

In the accompanying drawings: Figure 1 is a side view of a creamseparator having one of my improved stools. Fig. 2 is an inside view ofone of the corner pieces. F ig. 3 is a section on the line 33 of Fig. 2.Fig. 4: is a part sectional view of the lower part of a separator frame,the upper part of a stool, the shelf between, and a crowfoot throughwhich a bolt passes to secure all th parts together. Fig. 5 is a topview of one of the corner pieces. Fig. 6 is a view, simllar to Fig. 5 ofa modification.

Separator frame a rests on a shelf 6, which in turn rests on a stool c.The stool comprises side plates d and angular corner pieces 0, which maybe secured together by riveting or by electrical spot welding. The

corner pieces may be split down the bend at the top for a distance equalto the width of one side and bent over to form a doublethicknesshorizontal portion, as shown at f in Figs. 2, l and 5; or a V-shapednotch may be cut in the end and the two points bent down to form ajointed single-thickness horizontal portion 70, as shown in Fig. 6.

An inverted crowfoot g has its toes pressed upward against the undersides of The hori zontal portions at the tops of the corner pieces 6. Ascrew h, passed through a hole in the center of the crowfoot, enters athreaded socket in the bottom of the frame a and clamps all together.

In order to allow easy cleaning of the floor below the machine, the sidepieces d of the stool are cut off, considerably above the floor, and thecorner pieces are extended to form short legs and bent outward andspread apart to form feet at the bottom. The material of each cornerpiece is bent backward upon itself to give a double thickness foot asshown at 2', Fig. 2, and continued upward inside the lower portion ofthe side pieces as shown at 7' to reinforce and stiflen the leg andlower corner.-

The panel pieces cl, being formed without drawing, no press work, otherthan blanking and bending, is required. Because of the angular crosssection and reinforced lower portion the corner pieces may be formedoflight strips requiring only a low pressure to force into shape. Theshape of each corner piece is one that will require only a short strokepress to form.

aving now fully described my invention, what I desire to claim andprotect by Letters Patent is:

1. A machine stool comprising a series of upright panels of sheet metaland corner pieces uniting adjacent panels, each corner piece being ofangular cross section with its wings secured respectively to the edgeportions of adjacent panels and its upper ends cut and bent to formhorizontal shelves overlying the panels.

2. A machine stool comprising a series of upright panels of sheet metal,and corner pieces uniting adjacent panels and extending above and belowthe same, the part of each corner piece extending below the panels beingshaped to form a supporting foot and the part of each corner pieceextending above the panels and being cut and bent to form a horizontalshelf overlying adjacent panels.

3. A machine stool comprising a series of panels of sheet metal andcorner pieces uniting adjacent panels, each corner piece being ofangular cross section, the lower ends of the corner pieces being bentand returned on themselves to form feet of double thickness, one lowercorner of each panel being confined between opposing sections of onewing of an angular corner piece.

4. A machine stool comprising a series of panels of sheet metal andcorner pieces uniting adjacent panels, each corner piece being ofangular cross section the two wings of which extend outside of and aresecured to the edge portions of adjacent panels, the lower end of eachcorner piece being bent and returned on itself to form a doublethicknessfoot, the lower adjacent corners of adjacent panels being confinedbetween the two wings of the downwardly extending portion of a cornerpiece and the two wings of the upwardly extending portion thereof.

5. A machine stool comprising a series of panels of sheet metal andcorner pieces of angular cross section, each corner piece extendingoutside of and secured to the edge portions of adjacent panels, thelower ends of the corner pieces being bent and'returned on themselves toform double-thickness feet and extending inside the panels and confiningtheir lower corners between the clownward and upward bends of the cornerpieces, the upper ends of the corner pieces being out and bent to formhorizontal shelves.

6'. A machine stool comprising a series of upright panels of sheetmetal, the upright edges of the panels curving outwardly toward theirlower ends, and corner pieces of angular cross section adapted toconform, and secured, to the outside faces of the panels adjacenttheircurved edges, each corner piece extending below said panels andbent and returned upon itself and secured to the inside faces of thepanels adjacent their curved edges, the wings of the corner piecesadjacent the lines of bending being bent outward and spread apart andshaped to form double-thickness supporting feet.

7 In a machine support, the combination with a metal stool comprisingpanels and corner pieces, each corner piece having a horizontal portionat its upper end forming a shelf, an inverted crowfoot with its toesagainst the underside of the shelves, aframe resting on the shelves andhaving a threaded socket, and a bolt extending through a hole in thecrowfoot and entering the threaded socket in the frame and clamping theparts together.

v8. A machine stool comprising a series of panels of sheet metal andcorner pieces uniting adjacent panels, each corner piece being ofangular cross-section the two wings of which extend outside of and aresecured to the edge portions of adjacent panels, the lower end of eachcorner piece being bent and returned on itself, the lower adjacentcorners of adjacent panels being confined between the two wings of thedownwardly extending portion of a corner piece and the two wings of theupwardly extending portion thereof, the double thickness corner piecebelow the panels extending outwardly and the wings thereof being spreadapart toward approximately the same plane to provide a foot having anapproximately fiat horizontal extremity extending out-- w-ardly.

9. A machine stool comprising a series of side panels, and corner piecesof angular section secured to the panels, eachcorner piece at its lowerend being bent outwardly and thence returned upon itself, whereby itslower end portion is composed of two wings each of double thickness, thetwo win s at their lower ends being spread apart to orm an outwardlyextending approximately flat foot of double thickness and of a widthcorresponding to the combined widths of the two wings. 1

In testimony of which invention, I have hereunto set my hand, atPoughkeepsie, N. Y., on this 24th day of Aug, 1917. e

' MEREDITH LEITCH.

Copies of this patent may be obtained for five cents each,'by addressingthe Commissioner of Patents,

. Washington, D. G.

